.

Weather Anticipation

Normal Weather Expectation

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Setting a Non-Work Day in Primavera P6 Calendar

Nonworking days can be indicated in your calendar in Primavera to account for anticipated adverse weather

days.

.

Abnormal (Inclement) Weather Impact Tabulation and Calculations

How many weather days are owed from this example?

An adverse weather day can not be considered for the days in the red box above because the activities

were not impact by more than 50% of the work day.

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Calendars

P6 allows the creation and assignment of calendars to each resource and each activity. These calendars

define the number of available work days and or work hours in each calendar day. It is also possible to

specify national holidays, an organizations holidays, project-specific work/non work days, and resource

vacation days. P6 uses the calendar assignments for scheduling and tracking activities. An activitys type

determines whether the activity uses the calendar of an assigned resource or its activity calendar.

Three calendar pools are defined: global, resource, and project. The global calendar pool contains calendars

that apply to all projects. The project calendar pool is a separate pool of calendars for each project. The

resource calendar pool can be a separate pool of calendars for each resource. It is possible to assign either

resource or global calendars to resources, and can assign either global or project calendars to activities.

The ability to link resource and project calendars can be linked to global calendars. Then, if changes are

made to a global calendar, the changes apply to all resource and project calendars that are linked to the

modified global calendar.

Calendar Definition

1. Choose ENTERPRISE, CALENDARS

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Calendars (continued)

2. In the Calendars under the Project Calendar, select ADD to create a new calendar. Select Standard 5 Day

Workweek calendar. Make sure to switch to PROJECT mode when adding a calendar.

Select PROJECT when

adding a new calendar

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Calendars (continued)

3. To Re-name click in the Calendar Name area or to Modify the 5 Day Workweek with Holidays -Training

select Modify and make any changes to work or non-work days as needed. Then select OK.

.

Calendars (continued)

4. Check to ensure that the following Holidays are included or taken out of the 5 DAY WORKWEEK calendar:

Confirm / Add 05/25/09 Memorial Day Confirm / Add 07/03/09 Independence Day (Celebrated) Confirm / Add 09/07/09 Labor Day Remove 10/12/09 Columbus Day Confirm / Add 11/11/09 Veterans Day Confirm / Add 11/26/09 Thanksgiving Day Add 11/27/09 Day after Thanksgiving Confirm / Add 12/25/09 Christmas -Federal Holiday Add 01/01/10 New Years Day- Federal Holiday Confirm / Add 01/18/10 Dr. Martin Luther King Day Confirm / Add 02/15/10 Presidents Day Confirm / Add 05/31/10 Memorial Day

Double click on a date to change it from Non-Work to Work, or highlight the date and click on the

appropriate button in the right pane.

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Calendars (continued)

Weather Considerations

5. The contract requires that normal weather days be anticipated in the CPM. Assume that normally

Saturdays will be used as a make-up day. We will block out additional Wednesdays if there are not

enough Saturdays available in the month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

6 6 5 8 6 6 7 5 3 5 5 5

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Calendars (continued)

Weather Considerations Continued Example:

The contract requires to anticipate seven (7) inclement weather days in July. Because there are potentially 5

makeup days (Saturdays) in July 2009, we will block-out 2 additional days (7/7, 7/14, and 7/21).

Remember to F9 at this point

Another way to represent weather in a calendar is to create a 6 Day work week (Saturdays) in the schedule.

To do this select the PROJECT button in the Calendar dialog box then select the ADD button.

Type in name of your new Calendar in the

Calendar Name box

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Calendars (continued)

After renaming the calendar to 6 Day Work Week w/Holidays select the MODIFY button to create the 6 Day

Work Week Calendar. Select the WORKWEEK button at the lower right of the Project Calendar dialog box

(second graphic). This displays the Calendar Weekly Hours dialog box where modifying the days worked is

possible. In the SAT window place an 8 (for hours) which will open up all Saturdays.

Correctly re-named calendar

Select the Modify

Button to make

changes to your

new calendar

Select the

Workweek button

to modify the days

to be worked

Put an 8 in the

SAT window

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Assign Calendars to Activities

1. Choose VIEW, COLUMNS

2. Choose GENERAL, select CALENDAR and select the Right Arrow, then click OK

.

Assign Calendars to Activities (continued)

3. Click in the Calendar Cell of C10000. Choose Display: Project Calendar. See graphic below.

4. Select the 6 Day Work Week w / Holidays calendar. See graphic below

Click the add button

once you have selected

the correct calendar

Click the drop down

box at the right of the

calendar column

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Assign Calendars to Activities (continued)

5. Right-mouse click and select the FILL DOWN function to the remaining activities in the schedule (C10000

through and including C10090). See graphic below.

6. F9 or Schedule Button to calculate the schedule

The float values will change due to the extra time now in the schedule on those activities that have the 6 day

a week calendar.

Change the calendar BACK to the 5 Day Work Week with Holidays for all activities. Hint: Remember to

highlight and the Fill Down command